[RFID inventory control chip.]
Saw this 13 years ago - a TV commercial. I’m really surprised this has not been implemented across the whole of retail yet. It will be the end of the cashier, in a lot of ways. Of course, stores are already doing that, in various forms.
IBM RFID grocery store commercial
https://www.youtube.com/watch?v=wzFhBGKU6HA
It’s actually not economical to put a $0.50 RFID chip or tag on a $0.50 food product, and there’s issues with putting it on most clothing, for example.
Amazon has tried to implement it in an experimental food store they set up in Seattle, but it hasn’t worked out well so far. RFID in retail is mostly limited to inventory/process control and anti-shoplifting/shrinkage usage so far. Even the RFID-like ‘tap’ credit cards haven’t worked out so well so far.